Senior Software Engineer – Scalable PostgreSQL/Java

Chainalysis; United Kingdom; On-site; GBP 90,000 - 130,000; Full time

Job summary

Chainalysis is building the data platform for blockchain analytics and seeks a Senior Software Engineer with deep PostgreSQL and Java Spring Boot experience to drive high-impact projects at scale.

You will own a data ingest Java service, optimize PostgreSQL operations, and contribute to next-generation architecture while building scalable API services on AWS. Join a global team shaping the future of blockchain data engineering.

Qualifications

• 8+ years with PostgreSQL in production: schema design, query optimization, partitioning, replication, and performance tuning under write-heavy, high-throughput workloads
• 8+ years building Java Spring Boot services: REST APIs, JDBC, connection pooling, and JVM performance profiling
• Experience with Kafka or equivalent streaming systems: consumer groups, offset management, and partition lag debugging
• Track record operating distributed systems on AWS: microservices, multi-silo deployments, Terraform
• Strong cross-system debugging skills: tracing a serving delay from a Datadog metric to a Humio log to a code path
• Comfort with AI-assisted development and agentic engineering practices
• A bias to ship and iterate alongside product and design partners
• A genuine excitement for significantly scaling large data systems

Responsibilities

• Own and improve our data ingest Java service for enriched transfers generation and aggregations
• Design and tune PostgreSQL transaction batching, indexing, and replication strategies
• Contribute to the next-generation architecture. The team is evaluating a wide stack of cutting edge technologies. You will run PoCs, benchmark latency, and write ADRs and contribute to delivering the next generation to PROD
• Build and maintain scalable API services on AWS that handle thousands of requests per second
• Help automate network onboarding end-to-end
• Debug production issues across microservices, define SLOs, and participate in the on-call rotation
• Integrate LLM-based tools into daily engineering work and build agentic automation for operational tasks: automated incident triage, self-healing pipelines, and intelligent alerting

Skills

PostgreSQL

Java Spring Boot

Kafka

AWS

Kubernetes

Terraform

Python

Github

Tools

Github Actions

DataDog

Humio

PagerDuty

Job description

Chainalysis is building the data platform for blockchain analytics and seeks a Senior Software Engineer with deep PostgreSQL and Java Spring Boot experience to drive high-impact projects at scale.

You will own a data ingest Java service, optimize PostgreSQL operations, and contribute to next-generation architecture while building scalable API services on AWS. Join a global team shaping the future of blockchain data engineering.